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VulnerabilityPublished Updated

CVE-2026-22665: prompts.chat · Improper Handling of Case Sensitivity

Affects prompts.chatSource CVE Database V5

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Not known to be exploited · CVSS 8.6 High : upgrade to 1464475df2698fb7ccd0cdbc382b0750466f891d soon.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 4.0 base score
8.6High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 26% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 1464475df2698fb7ccd0cdbc382b0750466f891d
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 3 Apr 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Upgrade prompts.chat to 1464475df2698fb7ccd0cdbc382b0750466f891d.

Affected software

ProductAffectedFixed in
prompts.chatAffected
  • =0
Fixed in
  • 1464475df2698fb7ccd0cdbc382b0750466f891d
GitHubf/prompts.chatpkg:github/f/prompts.chatOther threatsAffected
  • =0
Fixed in–
GitHubprompts.chatpkg:github/prompts.chatOther threatsAffected
  • =0
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

Description

prompts.chat prior to commit 1464475, contains an identity confusion vulnerability due to inconsistent case-sensitive and case-insensitive handling of usernames across write and read paths, allowing attackers to create case-variant usernames that bypass uniqueness checks. Attackers can exploit non-deterministic username resolution to impersonate victim accounts, replace profile content on canonical URLs, and inject attacker-controlled metadata and content across the platform.

References

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